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    • 2. 发明授权
    • Control system for hydrodynamic retarder
    • 水力发电机控制系统
    • US3640359A
    • 1972-02-08
    • US3640359D
    • 1970-01-20
    • CATERPILLAR TRACTOR CO
    • CLARK RICHARD BMORRIS HUGH CWHITEHURST GERALD E
    • B60T10/00B60R17/02B60T1/087F16D57/06B60K29/02F16D57/00
    • B60T1/087B60R17/02Y10T137/2617
    • A control system is provided for use with a hydrodynamic retarder for providing braking to a vehicle by using engine lubricant as the working fluid. The system comprises a first pressure responsive, priority valve which functions to direct engine lubricant to a second, control valve from the engine lubricant pump only after the pressure in the engine lubricant system has achieved a sufficiently high level to supply the engine''s requirements. In another embodiment, the first valve meters lubricant to both the engine and retarder at the same time by means of metering slots. The second control valve is operatoractuated and functions to direct lubricant through the heat exchanger, the lubricant filter, and then to the engine in one mode, or additionally by way of a hydrodynamic retarder in a second mode and thus to provide braking for the vehicle.
    • 提供了一种与通过使用发动机润滑剂作为工作流体向车辆提供制动的流体动力学减速器一起使用的控制系统。 该系统包括第一压力响应优先阀,其仅在发动机润滑剂系统中的压力已经达到足够高的水平以提供发动机的要求之后才能将发动机润滑剂引导到来自发动机润滑剂泵的第二控制阀。 在另一个实施例中,第一阀通过计量槽同时计量发动机和减速器两者的润滑剂。 第二控制阀是操作者致动的,并且用于将润滑剂引导通过热交换器,润滑剂过滤器,然后以一种模式引导到发动机,或另外通过在第二模式中的流体动力学延迟器引导,从而为 车辆。